ibis_lonboard.py

# Old
m = leafmap.Map()

m.add_vector(broad_station_gdf, get_fill_color="blue")
m.add_vector(sts_near_broad_gdf, get_color="red", opacity=0.5)
m.add_vector(streets_gdf, get_color="grey", zoom_to_layer=False, opacity=0.3)
m

# New: simple method, just want to see my data:

from lonboard import viz

viz(
    [
        broad_station_gdf,
        sts_near_broad_gdf,
        streets_gdf,
    ]
)

# New: detailed method with specific rendering options

from lonboard import Map, ScatterplotLayer, PathLayer

# broad_station_gdf: Point geometries
# sts_near_broad_gdf: (Multi)LineString geometries
# streets_gdf: (Multi)LineString geometries

broad_station_layer = ScatterplotLayer.from_geopandas(
    broad_station_gdf, get_fill_color="blue"
)
sts_near_broad_layer = PathLayer.from_geopandas(
    sts_near_broad_gdf, get_color="red", opacity=0.5
)
streets_layer = PathLayer.from_geopandas(streets_gdf, get_color="grey", opacity=0.3)
m = Map(
    [
        broad_station_layer,
        sts_near_broad_layer,
        streets_layer,
    ]
)
m

# This also gives better context to why the parameter passed in to `broad_station_gdf`
# is named `get_fill_color` while the parameter for the other two is `get_color`. This
# is because they're rendered as separate deck.gl Layer types, and the point layer also
# has a `get_line_color` parameter for rendering the outline of the point.

@kylebarron I'm trying to replace this in the existing blog https://ibis-project.org/posts/ibis-duckdb-geospatial/ and just use lonboard, without leafmap, but I noticed when I do the plots, I lose the automatic zoom I had with leafmap.

For example this plot,

m = leafmap.Map()

m.add_vector(broad_station_gdf, get_fill_color="blue")
m.add_vector(sts_near_broad_gdf, get_color="red", opacity=0.5)
m.add_vector(streets_gdf, get_color="grey", zoom_to_layer=False, opacity=0.3)
m

renders

but when I convert this to

broad_station_layer = ScatterplotLayer.from_geopandas(
    broad_station_gdf, get_fill_color="blue", get_radius=3
)
sts_near_broad_layer = PathLayer.from_geopandas(
    sts_near_broad_gdf, get_color="red", opacity=0.5
)
streets_layer = PathLayer.from_geopandas(streets_gdf, get_color="grey", opacity=0.3)
m = Map(
    [
        broad_station_layer,
        sts_near_broad_layer,
        streets_layer,
    ], 
)
m

I loose the zoom, and I have to manually zoom, is there any way to automatically zoom to where the first two layers are?